DUCT HUMIDITY TRANSMITTER(GDH-420) | | | "GDH" Duct Humidity Transmitter is intended for an electronic Humidity transmitter to measures the Duct Relative Humidity (RH) and converts the measurement into and electric signal. | | This unit can be used with all system equipments that can receive output signals 4 ~ 20mA DC of the detector. | | This Transmitter senses relative humidity by chargeable humidity sensing element which varies electrical capacity depending on circumstantial relative humidity. Electronic sensing circuit varies signal into 4 ~ 20mA DC ( within 0 ~ 99% relative humidity ). Sensing Accuracy is ±3% within usable range of 20 ~ 90% RH. | | SUPPLY VOLTAGE | : 24V AC/DC ±20%
| | FREQUENCY | : 50 or 60㎐ | POWER CONSUMPTION | : below 0.5VA | SENSING RANGE | : 0 ~ 99% Rh | SENSING ELEMENT | : Integrated Circuity | | | ACCURACY | : 20°C at 20~90%Rh with in ±3%Rh
| | OUTPUT SIGNAL | : 4 ~ 20mA DC
| | SENSING TIME | : Apprx. 20 sec. (velocity 20m/s)
| | | AMBIENT TEMPERATURE | : 1) On Operation : -5 ~ +50℃ 2) On Transportation & Storage : -25 ~ +70°C
| | AMBIENT HUMIDITY | : 1) On Operation : 5 ~ 99%Rh 2) On Transportation : below 95% Rh | | | WEIGHT | : 0.17Kg (W/BRACKET) | | CABLE FITTING | : PF 1/2"
| PROTECTION CLASS | : IP 54 | | | Installation Location; When the detector has to be mounted on supply duct, the detector must be kept between 3 to 8 meters from the humidifier unit For accurate measurement of the relative humidity, Follow recommendation as ; -Steam humidifier; between 5 to 8 meters -Spray water fogger; between 3 to 10 meters | | DUCT HUMIDITY TRANSMITTER(GDH-110) | | | "GDH" Duct Humidity Transmitter is intended for an electronic Humidity transmitter to measures the Duct Relative Humidity (RH) and converts the measurement into and electric signal. | | This unit can be used with all system equipments that can receive output signals 0 ~ 10VDC of the detector. | | This Transmitter senses relative humidity by chargeable humidity sensing element which varies electrical capacity depending on circumstantial relative humidity. Electronic sensing circuit varies signal into 0 ~ 10VDC ( within 0 ~ 99% relative humidity ). Sensing Accuracy is ±3% within usable range of 20 ~ 90% RH. | | SUPPLY VOLTAGE | : 24V AC/DC ±20%
| | FREQUENCY | : 50 or 60㎐ | POWER CONSUMPTION | : below 0.5VA | SENSING RANGE | : 0 ~ 99% Rh | SENSING ELEMENT | : Integrated Circuity | | | ACCURACY | : 20°C at 20~90%Rh with in ±3%Rh
| | OUTPUT SIGNAL | : 0 ~ 10V DC (0 ~ 1V DC) | | SENSING TIME | : Apprx. 20 sec(velocity 20m/s)
| | | AMBIENT TEMPERATURE | : 1) On Operation : -5 ~ +50℃ 2) On Transportation & Storage : -25 ~ +70°C
| | AMBIENT HUMIDITY | : 1) On Operation : 5 ~ 99%Rh 2) On Transportation : below 95% Rh | | | WEIGHT | : 0.17Kg (W/BRACKET) | | CABLE FITTING | : PF 1/2"
| PROTECTION CLASS | : IP 54 | | DUCT HUMIDITY TRANSMITTER(GDHO-420) | | | "GDHO “ Duct Humidity Transmitter is intended for Ventilation and Air-handling units to the following usages ; Sensing supplying or ventilating Air humidity Shift Sensor ( in case of revising room humidity depend on outside air humidity ) Measuring Sensor ( display sensing value or in case of using DDC auto control system ) | | SUPPLY VOLTAGE | : 15 ~ 30 V DC | | OUTPUT SIGNAL | : 4 ~ 20 mA | SENSING RANGE | : 0 ~ 99%RH | | SENSING ELEMENT | : Integrated Circuity | | ACCURACY | : 20°C at 20~90%Rh within ± 3%Rh | | WIRING | : 2 Wire | | SENSING TIME | : Apprx.1 min. at 2m/s velocity
| | AMBIENT TEMPERATURE | : -5 ~ +70°C
| | | AMBIENT HUMIDITY | : 1) On Operation : below 5 ~ 99%RH 2) On Transportation : below 95%RH | CABLE FITTING | : PF1/2"
| | PROTECTION CLASS | : IIP54 (EN60529)
| | WEIGHT | : 0.25Kg ( including bracket ) | | | | | In case of controlling supplying air humidity - In case of installing Fan at the last air control unit, install behind of Fan - For the other cases, install at least 1.5M away from the last air control unit In case of controlling ventilating air humidity - Install always at behind of Fan
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